US20080080188A1 - Modulized Assembly Of A Large-sized LED Lamp - Google Patents

Abstract

A modulized assembly for a large-sized LED lamp includes a shell, a cover, a light-transmitting mirror and a plurality of LED modules. The interior of the shell is formed with a separation plate. The separation plate is provided with a plurality of through troughs thereon. The cover is covered and connected above the shell, and formed with venting troughs in communication with the outside air thereon. Further, the light-transmitting mirror is sealed and connected to the underside of the shell. The LED module includes a plate body and a LED lamp set connected to the plate body. The plate body is correspondingly sealed and connected to individual trough troughs of the separation plate. Among the shell, the light-transmitting mirror and the plate body, a sealed space is enclosed. The LED lamp set is accommodated in the sealed space and illuminates toward the light-transmitting mirror. With the above arrangement, the assembling process between each LED module and the associated shell becomes much easier. Further, it is also much easier and more convenient to repair each damaged LED module.

Description

BACKGROUND OF THE INVENTION
• 1. Field of the Invention
• The present invention relates to a modulized assembly of a large-sized LED lamp, and in particular to a modulized assembly of a large-sized LED lamp, whereby it is much easier to assemble each LED module with a shell.
• 2. Description of Prior Art
• Since light-emitting diodes (LED) have many advantages, such as high-intensity, electricity-saved and long-life, they are widely used in illumination devices. A plurality of LED lamps is usually arranged and connected on a circuit board and thus forms a LED lamp set. Then, a plurality of LED lamp sets is arranged in series or in parallel to form a LED lamp. In this way, a large range of illumination and the requirement for high intensity can be achieved. Further, the LED lamp can be used for an indoor or outdoor illumination device.
• A conventional structure of a LED lamp disclosed in Taiwan Utility Model Patent Publication No. M292042 includes an upper cover, a light-transmitting mirror, a separation plate, a LED lamp set, a heat pipe and a heat-dissipating piece set. The upper cover is provided with a venting trough. The light-transmitting mirror is connected to the upper cover. The separation plate is horizontally connected between the upper cover and the light-transmitting mirror to define a first and second space. The center of the separation plate is provided with an opening. The LED lamp set comprises a circuit board and a plurality of LED lamps fixedly connected on the bottom surface of the circuit board. The top surface of the circuit board is brought into contact with an end of the heat pipe. The circuit board is sealed in an opening of the separation plate with each LED lamp accommodated in the second space and the heat pipe and the heat dissipator accommodated in the first space. The heat dissipator is connected to the other end of the heat pipe. With the above arrangement, a LED lamp can be formed.
• However, in practice, the conventional LED lamp still has some drawbacks as follows. Since the plurality of LED lamps is welded on the circuit board in a large area, each LED lamp is located at different positions and thus generates different working temperatures. The working temperature will directly affect the life of the LED lamp. After being used for a period of time, the LED lamps will be inevitably damaged. If the number of the damaged LED lamps is too large, the illumination of the light will be insufficient, and thus it is necessary to carry out detaching and repairing operations. During the detachment, the welds of each damaged LED lamp should be removed first, and then performs a welding operation again, which not only causes the complexity and inconvenience of the repairing operation, but also waste a great amount of labor and cost. Therefore, the practicability and economical effect thereof will be substantially reduced. Further, if only the heat pipe is used for heat conduction, the surface area directly contacting with the LED lamp sets is very limited, and thus the heat dissipated by the heat pipe is also limited. Especially, as the gradual development of high-power LED lamps, the above structure cannot satisfy the requirement for a large-sized LED lamp in current stage. Moreover, since the above structure does not has a temperature sensor for sensing the temperature of the LED lamp, after the working temperature of each LED lamp rises, the life of the internal LED lamps will be substantially reduced because there is no protective mechanism to perform a suitable protection measure.
SUMMARY OF THE INVENTION
• The object of the present invention is to provide a modulized assembly for a large-sized LED lamp. With individual arrangement of each LED modules, the assembling process between each LED lamp module and the associated shell becomes much easier. Further, the repair of each damaged LED module is also much easier and more convenient.
• The present invention provides a modulized assembly for a large-sized LED lamp, which includes a shell, a cover, a light-transmitting mirror and a plurality of LED modules. The interior of the shell is formed with a separation plate. The separation plate is provided with a plurality of through troughs thereon. The cover is covered and connected above the shell, and formed with venting troughs in communication with the outside air. Further, the light-transmitting mirror is sealed and connected below the shell. The LED module comprises a plate body and a LED lamp set connected to the plate body. The plate body is sealed and connected correspondingly to the individual through troughs of the separation plate. Among the shell, the light-transmitting mirror and the plate body, a sealed space is enclosed. The LED lamp set is accommodated in the sealed space and illuminates toward the light-transmitting mirror.
BRIEF DESCRIPTION OF THE DRAWINGS
• FIG. 1 is an exploded perspective view of the shell and the LED module of the present invention;
• FIG. 2 is an exploded perspective view of the LED module of the present invention;
• FIG. 3 is an assembled view of the shell and the LED module of the present invention;
• FIG. 4 is an exploded perspective view of the present invention;
• FIG. 5 is an assembled view of the present invention; and
• FIG. 6 is an assembled cross-sectional view of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
• The detailed description and the technical contents of the present invention will be made with reference to the accompanying drawings. However, it should be understood that the drawings are illustrative but not used to limit the scope of the present invention.
• FIG. 1 is an exploded perspective view of the shell and the LED module of the present invention.FIG. 2 is an exploded perspective view of the LED module of the present invention.
• FIG. 3 is an assembled view of the shell and the LED module of the present invention. The present invention provides a modulized assembly for a large-sized LED lamp, which comprises ashell10, a cover20 (FIG. 4), a light-transmitting mirror30 (FIG. 4) and a plurality ofLED modules40.
• Theshell10 has a substantiallyrectangular frame11. The middle portion within theframe11 is formed with ahorizontal separation plate12. Theseparation plate12 is provided with a plurality of rectangular throughtroughs13 thereon. The four corners of the through trough are provided withscrew holes14, respectively. The front and rear of the outside of theframe11 are provided with atrigger15 and ashaft seat16.
• With reference toFIG. 4, thecover20 is constituted of atop plate21 andperipheral plates22 bending downwardly from the periphery of thetop plate21. Thetop plate21 has a plurality ofcap23 protruding from thetop plate21. The gap between eachcap23 and thetop plate21 is formed with a ventingtrough24 in communication with the outside air.
• As shown inFIG. 4, the light-transmittingmirror30 can be made of a transparent or translucent material and directly connected to the underside of theframe11 of theshell10. The present embodiment further includes a substantially rectangular lower frame50 (FIG. 4). Thelower frame50 can be connected to the light-transmittingmirror30 and then connected with theshell10. The front side thereof is provided with ahook51 to correspond to thetrigger14, and the rear side thereof is provided with anothershaft seat52 to correspond to theshaft seat16 for connecting with a pivot (not shown).
• TheLED module40 comprises aplate body41, a LED lamp set42 and aheat dissipator43. Theplate body41 is formed into a rectangular shape and connected withbolts411 at four corners. The middle of the plate body is provided with a plurality of throughholes412. The LED lamp set42 comprises a fixingseat421, alamp cover422 connected to the underside of the fixingseat421, and a plurality ofLED lamps423 accommodated in thelamp cover422. The fixingseat421 is provided with a plurality of hangingholes424 thereon. Both ends of atension spring425 are hooked to the hanging hole and thebolt411 and thus positioned in place.
• Theheat dissipator43 comprises anisothermal plate431, a plurality ofheat pipes432 and a plurality of heat-dissipating piece sets434. Theisothermal plate431 is fixedly connected above thelamp cover422, and contacts with the back surface of eachLED lamp423. Eachheat pipe432 has annular to-be-heated ends and upright heat-releasing ends. The to-be-heated end is sandwiched between the fixingseat421 and theisothermal plate431. The to-be-heated end extends upwardly to penetrate the throughhole412 of theplate body41, and is connected with each heat-dissipating piece set434. With a large surface contact between theisothermal plate431 of theheat dissipator43 and the LED lamp set42, theheat pipe432 can be used to dissipate heat along a long distance. In this way, the whole efficiency in heat conduction and heat dissipation can be substantially improved so as to prolong the life of theLED lamp423.
• Further, theLED module40 comprises asoft gasket44 and atemperature sensor45. Thesoft gasket44 is sandwiched between the corresponding end faces of the fixingseat421 and theisothermal plate431, thereby to make the contacting effect more uniform and balanced between theisothermal plate431 and the to-be-heated end of theheat pipe432. Thetemperature sensor45 is fixedly connected on the fixingseat421 and contacts with theisothermal plate431 so as to sense the temperature of theisothermal plate431. When the working temperature of theLED lamp423 rises to higher than a preset value, the power supplied to the LED lamp set42 is immediately shut off to cool and reduce the temperature of the LED lamp set42. On the other hand, when the temperature reduces to a preset value for activation, the power can be automatically supplied again so that theLED lamp423 of the LED lamp set42 can illuminate. In this way, the LED lamp set42 can be protected.
• FIGS. 4,5 and6 are an exploded perspective view, assembled view and an assembled cross-sectional view of the present invention. In assembling, eachLED module40 is mounted on theseparation plate12 of theshell10, respectively. The heat-dissipating piece set433 and the LED lamp set42 are formed on upper and lower sides of theseparation plate12, respectively. Then, thecover20 is covered and connected above theshell10, and the light-transmittingmirror30 is disposed into thelower frame50 and connected thereto. The contacting portion between the light-transmittingmirror30 and thelower frame50 is provided with waterproof tapes. Finally, thelower frame50 is correspondingly covered to the shell with the pivot penetrating into the shaft seats16,52 in the back and connected thereto. Thetrigger15 is fastened with thehook51 in the front. Since eachLED module40 is separately arranged, it is much easier to assemble each LED module with theshell10. When eachLED module40 is damaged, it is only necessary to detach and replace the damaged LED module, thereby substantially simplify the time and process of repair.
• In use, the LED lamp can be connected to a distal end of a lamp rod8 (FIG. 6). A current is applied to the LED lamp set42, so that eachLED lamp423 can illuminate and generate heat. With the large surface contact of theisothermal plate431 and a heat-conducting mechanism between liquid and vapor phases, the thus-generated heat can be rapidly dissipated to the top surface of theisothermal plate431, and then conducts to the to-be-heated end of theheat pipe432. Then, the heat is conducted from the to-be-heated end to the heat-releasing end. With the contacting effect between the heat-releasing end and the heat-dissipating piece set433, the heat can be dissipated from each heat-dissipating piece. In addition, the ventingtrough24 of thecover20 is in communication with the outside air, thereby to produce a thermal convection between the inside air and the outside air. In this way, the heat of each heat-dissipating piece can be dissipated to the outside of thecover20, so that eachLED lamp423 illuminates at a lower temperature to prolong its life.
• According to the above, the present invention indeed has industrial applicability, novelty and inventive steps. Further, the present invention has not been published or used in public prior to filing for a patent and thus conforms to the requirements for a utility model patent.
• Although the present invention has been described with reference to the foregoing preferred embodiments, it will be understood that the invention is not limited to the details thereof Various equivalent variations and modifications can still be occurred to those skilled in this art in view of the teachings of the present invention. Thus, all such variations and equivalent modifications are also embraced within the scope of the invention as defined in the appended claims.

Claims (8)

1. A modulized assembly of a large-sized LED lamp, comprising:

a shell formed with a separation plate therein, the separation plate provided with a plurality of through troughs thereon;

a cover covered and connected above the shell, the cover formed with venting troughs in communication with the outside air;

a light-transmitting mirror sealed and connected to the underside of the shell and;

a plurality of LED modules comprising a plate body and a LED lamp set connected to the underside thereof,

wherein the plate body is correspondingly sealed and connected to the through trough of the separation plate, a sealed space is formed among the shell, the light-transmitting mirror and the plate body, the LED lamp set is accommodated within the sealed space and illuminates toward the light-transmitting mirror.

2. The modulized assembly of a large-sized LED lamp according toclaim 1, wherein the shell has a frame, and the middle of the interior of the frame is formed with the separation plate.

3. The modulized assembly of a large-sized LED lamp according toclaim 1, wherein the cover is constituted of a top plate and peripheral plates bending downwardly from the periphery of the top plate, the top plate is provided with a plurality of caps protruding from the top plate, and a gap between the cap and top plate is formed with the venting trough.

4. The modulized assembly of a large-sized LED lamp according toclaim 1, wherein four corners of the plate body of the LED module is connected with bolts, and the LED lamp set comprises a fixing seat and a lamp cover connected to the fixing seat, the fixing seat is provided with a plurality of hanging holes thereon, and a tension spring is connected between each hanging hole and the bolt.

5. The modulized assembly of a large-sized LED lamp according toclaim 4, wherein the LED module further comprises a heat dissipator, the heat dissipator comprises an isothermal plate, a plurality of heat pipes and a plurality of heat-dissipating piece sets, the isothermal plate is fixedly connected above the lamp cover, one end of each heat pipe is sandwiched between the fixing seat and the isothermal plate, and the other end thereof penetrates the plate body and connected to each heat-dissipating piece set.

6. The modulized assembly of a large-sized LED lamp according toclaim 5, wherein the LED module further comprises a soft gasket sandwiched between the corresponding end faces of the fixing seat and the isothermal plate.

7. The modulized assembly of a large-sized LED lamp according toclaim 6, wherein the LED module further comprises a temperature sensor fixedly connected on the fixing seat and contacting with the isothermal plate so as to sense the temperature of the isothermal plate.

8. The modulized assembly of a large-sized LED lamp according toclaim 1, further comprising a lower frame, the lower frame connected to the underside of the shell after being connected with the light-transmitting mirror.

Images